--- product_id: 129774503 title: "National Hardware N222-448 2193BC U Bolt in Stainless Steel" brand: "national hardware" price: "€ 17.10" currency: EUR in_stock: true category: "National Hardware" url: https://www.desertcart.hr/products/129774503-national-hardware-n222-448-2193bc-u-bolt-in-stainless-steel store_origin: HR region: Croatia --- # 300 Series Stainless Steel Corrosion Resistance Fits 4.5-inch Groove Diameter Grade 8 Alloy Steel Strength National Hardware N222-448 2193BC U Bolt in Stainless Steel **Brand:** national hardware **Price:** € 17.10 **Availability:** ✅ In Stock ## Summary > 🔧 Lock in strength and style with the ultimate corrosion-proof U-bolt! ## Quick Answers - **What is this?** National Hardware N222-448 2193BC U Bolt in Stainless Steel by national hardware - **How much does it cost?** € 17.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/129774503-national-hardware-n222-448-2193bc-u-bolt-in-stainless-steel) ## Best For - national hardware enthusiasts ## Why This Product - Trusted national hardware brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Fit:** Designed to securely fasten pipes, wood, and more with a perfect fit for 4.5-inch groove diameters. - • **Trusted Legacy:** Backed by National Hardware’s century-long commitment to quality, innovation, and manufacturing excellence. - • **Weatherproof Wonder:** 300 series stainless steel with 18% chromium ensures zero rust or corrosion—even in marine or outdoor environments. - • **Unmatched Durability:** Crafted from Grade 8 alloy steel for superior shear strength (~275 MPa) that stands up to industrial demands. - • **Complete Fastening Kit:** Includes plate and nuts for hassle-free installation—everything you need in one package. ## Overview The National Hardware N222-448 2193BC U Bolt is a premium-grade, fully threaded fastening solution made from 300 series stainless steel alloy with 18% chromium, delivering exceptional corrosion resistance and industrial-grade shear strength (~275 MPa). Perfect for automotive, plumbing, marine, and outdoor applications, it fits 4.5-inch groove diameters and comes complete with plate and nuts for easy installation. Trusted by professionals for over a century, this U-bolt combines durability, precision, and weatherproof reliability. ## Description Product Description Whether for home, farm, builder or industrial customers, National has all the right hardware in the sizes and finishes you need. With over a century of service National is committed to maintaining the highest level of product quality, innovation and manufacturing technology. Providing latching and fastening options for all of your indoor and outdoor uses. Barrel, Dutch door, flush, mortise and surface bolts designed with ease of use and security in mind. Utilizing 300 series stainless steel with 18% chromium, which gives the corrosion protection as pure chromium in chrome plating. These products will not corrode or rust when exposed to the weather. From the Manufacturer Whether for home, farm, builder or industrial customers, National has all the right hardware in the sizes and finishes you need. With over a century of service National is committed to maintaining the highest level of product quality, innovation and manufacturing technology. Providing latching and fastening options for all of your indoor and outdoor uses. Barrel, Dutch door, flush, mortise and surface bolts designed with ease of use and security in mind. Utilizing 300 series stainless steel with 18% chromium, which gives the corrosion protection as pure chromium in chrome plating. These products will not corrode or rust when exposed to the weather. ## Features - Designed for fastening products to pipe, wood, etc. - Suitable for automotive, plumbing and other home and industrial applications - Plate and nuts included - Excellent for marine and other outdoor applications - Manufactured from stainless steel ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BQ7ZYC | | Best Sellers Rank | #160,868 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #137 in U-Bolts | | Brand | National Hardware | | Color | Stainless Steel | | Compatible Groove Diameter | 4.5 inches | | Customer Reviews | 4.4 4.4 out of 5 stars (221) | | Exterior Finish | Zinc | | Fastener Type | U-Bolt | | Finish Types | Stainless Steel | | Global Trade Identification Number | 00038613191419 | | Grade Rating | Grade 2 | | Head Type | Flange | | Included Components | BOLT U 5/16"X1.38X2.5 SS | | Item Dimensions | 4.46 x 3.23 x 1.68 inches | | Item Hardness | Grade 2 | | Item Type Name | Stanley National Hardware N222-448 2193BC U Bolt in Stainless Steel, 5/16" x 1-3/8" x 2-1/2" | | Item Weight | 8.53 g | | Manufacturer | National Hardware | | Manufacturer Grade | Grade 8 | | Material Type | Alloy Steel | | Maximum Shear Strength | Approximately 275 MPa | | Metal Type | Stainless Steel | | Model | N222-448 | | Number Of Items | 1 | | Number of Packs | 1 | | Number of Pieces | 1 | | Part Number | 222448 | | Screw Head Style | Cupped | | Set Screw Thread Type | UNC or UNF | | Size Name | #512-5/16"x1-3/8"x2-1/2" | | Thread Coverage | Fully Threaded | | Thread Size | 1/2"-13 | | Thread Style | Left Hand | | Thread Type | Unc | | UPC | 038613191419 | | Unit Count | 1 Count | | Warranty Description | Warranty | ## Product Details - **Exterior Finish:** Zinc - **Head Style:** Cupped - **Manufacturer Grade:** Grade 8 - **Material:** Alloy Steel - **Thread Size:** 1/2"-13 ## Images ![National Hardware N222-448 2193BC U Bolt in Stainless Steel - Image 1](https://m.media-amazon.com/images/I/513H2JV43VL.jpg) ![National Hardware N222-448 2193BC U Bolt in Stainless Steel - Image 2](https://m.media-amazon.com/images/I/41xepZFjUNL.jpg) ![National Hardware N222-448 2193BC U Bolt in Stainless Steel - Image 3](https://m.media-amazon.com/images/I/61kgO9prO9L.jpg) ![National Hardware N222-448 2193BC U Bolt in Stainless Steel - Image 4](https://m.media-amazon.com/images/I/51U7uqb+y0L.jpg) ![National Hardware N222-448 2193BC U Bolt in Stainless Steel - Image 5](https://m.media-amazon.com/images/I/61SGIpSA7AL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Is the 1 3/8” an inside or outside measure for the width for u bolt N222-448?** A: 1-3/8” is the Inside width. ## Frequently Bought Together - National Hardware N222-448 2193BC U Bolt in Stainless Steel - uxcell Round U-Bolts 4 Sets 0.63"(16mm) Inner Width 46mm Length Steel M6 with Nut, Plate, Washer - National Hardware N222-562 DP2190BC U Bolt Zinc plated, 5/16" x 2-1/2" x 5" --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/129774503-national-hardware-n222-448-2193bc-u-bolt-in-stainless-steel](https://www.desertcart.hr/products/129774503-national-hardware-n222-448-2193bc-u-bolt-in-stainless-steel) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-24*